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  <title>MSE: QuotaExceededError when source buffer is full</title>
  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <script type="text/javascript" src="mediasource.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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<pre id="test"><script class="testbody" type="text/javascript">

SimpleTest.waitForExplicitFinish();
// We fill up the source buffer with audio data until the buffer is full.
// We ensure that QuotaExceededError is thrown once the buffer is full.
// We then seek to half the content. By that time, another appendBuffer must succeed
// as the auto-eviction would succeed (removing all data prior currentTime)

// Fill up the SourceBuffer by appending data repeatedly via doAppendDataFunc until
// an exception is thrown.
function fillUpSourceBuffer(sourceBuffer, doAppendDataFunc, onCaughtExceptionCallback) {
  // We are appending data repeatedly in sequence mode, there should be no gaps.
  ok(sourceBuffer.buffered.length <= 1, "there should be no gap in buffered ranges.");
  try {
    doAppendDataFunc();
  } catch(ex) {
    onCaughtExceptionCallback(ex);
    return;
  }
  once(sourceBuffer, 'updateend', () => {
    fillUpSourceBuffer(sourceBuffer, doAppendDataFunc, onCaughtExceptionCallback);
  });
}

runWithMSE(function(ms, el) {
  el.controls = true;
  once(ms, 'sourceopen').then(function() {
    ok(true, "Receive a sourceopen event");
    SpecialPowers.pushPrefEnv({
      "set": [
        ["media.mediasource.eviction_threshold.audio", 524288],
      ]
    }, function() {
      let audiosb = ms.addSourceBuffer("audio/mp4");
      audiosb.mode = "sequence";
      fetchAndLoad(audiosb, 'bipbop/bipbop_audio', ['init'], '.mp4')
      .then(function() {
        fetchWithXHR('bipbop/bipbop_audio1.m4s', function(audioBuffer) {
           fillUpSourceBuffer(audiosb,
             function() { // doAppendDataFunc
               audiosb.appendBuffer(audioBuffer);
             },
             function(ex) { // onCaughtExceptionCallback
               is(ex.name, 'QuotaExceededError', "QuotaExceededError thrown");
               is(audiosb.buffered.end(0), el.duration, "Duration is end of buffered range");
               let seekTime = audiosb.buffered.end(0) / 2;
               el.currentTime = seekTime;
               once(el, 'seeked', () => {
                 is(el.currentTime, seekTime, "correctly seeked to " + seekTime);
                 try {
                   audiosb.appendBuffer(audioBuffer);
                 } catch(ex) {
                   ok(false, "Shouldn't throw another time when data can be evicted");
                   el.mozDumpDebugInfo();
                   SimpleTest.finish();
                   return;
                 }
                 once(audiosb, 'update', () => {
                   ok(true, "appendBuffer succeeded");
                   SimpleTest.finish();
                 });
               });
            });
        });
      });
    });
  });
});

</script>
</pre>
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